This may actually be a stupid or newbie question so I apologize in advance if it is. I have a large music repository on a NAS box, some 100GB of full albums. When I first set-up iTunes I added that monster folder to the iTunes library but set it to NOT copy any of the files to the local PC due to it's size. When I add albums to this large repository they do not show up in iTunes. I would have expected that there would be an "update" library feature but I can't find one. If I simply play the new album in iTunes it gets added automatically which is cool but I would much rather be able to tell iTunes to re-scan that big external folder for any newly added files. Any thoughts....? Thanks much.